Table 5.

Effect of age on phonotactic response to an identical stimulus

Comparison	Source	df	F
			STD1	STD2
Age 10, 20, 30	Age	2.14	2.92	1.75
	Trial	2.14	2.03	3.27
	Age × trial	4.28	1.92	1.28
Age 10-final	Age	1.9	8.39*	5.96*
	Trial	2.18	0.19	1.85
	Age × Trial	2.18	0.69	0.79

Results of four repeated measures ANOVA conducted on the phonotactic precision (BatD) while tracking the STD₁ or STD₂ stimulus of three trials (BW, DC, FQ). Females included in the analyses were all females surviving to 30 days of age and all females between age 10 and final age (defined as the last trial completed successfully before the female died). None of the results were significant for 10–30 days of age suggesting no effect of age on phonotactic precision toward a specific stimulus. The significant age effect of the age 10-final tests suggest that a female looses phonotactic ability and/or motivation a few days before she dies

* P < 0.05